My real first? It was a stupid reseller hosting company which I ended up buying overpriced services from Hostgator, and using their ugly templates. Ended up wasting 5 months and haven't got more than 3 customers.
My second hosting company however, profited like 2-3 grand a year for two good years, I sold it for cheap though, cause I didn't want to take responsibility of hosting over a hundred clients anymore.